Job Description:

This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Join AT&T and reimagine the communications and technologies that connect the world. Our Consumer Technology experience team is delivering innovative and reliable technology solutions to power differentiated, simplified customer experiences. Bring your bold ideas and fearless risk-taking to redefine connectivity and transform how the world shares stories and experiences that matter. When you step into a career with AT&T, you won’t just imagine the future-you’ll create it.

Are you passionate about turning complex business challenges into innovative technical solutions? As a Principal System Engineer at AT&T for target architecture billing domain and Security by design lead, you will play a critical role in shaping the architecture of cutting-edge systems that power our business. You’ll collaborate across teams to design scalable, reliable, and secure solutions that drive performance and innovation. If you thrive in a dynamic environment where your expertise directly impacts technology strategy and execution, this is the role for you.

What You’ll Do

Design and develop comprehensive system architecture covering both hardware and software components in Wireless and Broadband billing, ordering and assurance domains as Principal system engineer collaborating with cross domain teams.

Act as a lead for security by design evaluating and developing solutions for security and compliance adherence across billing, ordering and assurance applications in both legacy and target platforms

Critical thinking for developing and defining target architecture roadmaps and developing solutions to meet business needs as part of BSS transformation

Decompose EPICs, Features into user stories and do required development (coding) to deliver business functionality

Develop Solution intent and application impact assessment-

EPIC/Feature refinement, user story, and interface design analysis & Story point estimation

Acting as the application SME for the domain target roadmap with latest scalable and resilient technologies

Providing audit support and evidence gathering collaborating with various cross functional teams

Ensuring security and retention compliance

Planning and executing disaster recovery- 

Experience is code branch management, CI/CD pipeline, continuous delivery, change management

Contributing to the core roadmap to support the application roadmap

Identifying core platform or business logic gaps, and proposing effective solutions

Managing user story coverage and demo acceptance

Handling defect management and troubleshooting

Developing application interface design- Facilitating the end-of-life for AID versions with dependent systems

Define integrated solutions that balance performance, scalability, reliability, security, and usability requirements.

Lead the coordination and integration of entire systems, including complex subsystems.

Research emerging technologies and recommend enhancements to elevate existing systems.

Support technical initiatives as a key contributor on large-scale projects.

Drive the development and maintenance of new and existing technologies with robust security, compliant with AT&T and regulatory standards, scalable and resilient systems meeting the business expectations and SLAs.

Communicate complex technical concepts clearly, mentoring and guiding team members effectively.

What You’ll Bring

8-10 years of hands-on experience in system engineering, Architecture, Design, Development (coding) or related technical roles.

Bachelor’s or Master’s degree in Engineering, Information Systems, Computer Science, or a related technical field.

Vast experience in Telecom especially developing and implementing solutions using latest technical stack in  Wireless and Broadband billing, ordering and assurance domains.

Experience in security by design enabling robust security and compliance.

AI Experience in Application development, Quality, Monitoring, Scalability and resiliency.

Proven track record designing systems that successfully address high performance and scalability challenges.

Strong skills in creating clear, detailed technical documentation for systems and applications.

Ability to collaborate seamlessly with both technical teams and business stakeholders.

Excellent problem-solving skills, critical thinking with a logical, systematic approach.

Passion for continuous learning and staying current with industry trends and technologies.

Our Principal System Engineering, earns between $141,300-$237,400 USD Annual not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.

Joining our team comes with amazing perks and benefits:

Medical/Dental/Vision coverage

401(k) plan

Tuition reimbursement program

Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)

Paid Parental Leave

Paid Caregiver Leave

Additional sick leave beyond what state and local law require may be available but is unprotected.

Adoption Reimbursement

Disability Benefits (short term and long term)

Life and Accidental Death Insurance

Supplemental benefit programs: critical illness/accident hospital indemnity/group legal

Employee Assistance Programs (EAP)

Extensive employee wellness programs

Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone.

#LI-Onsite – Full-time office role-

#ConsumerTechnologyeXperience

 AT&T is leading the way to the future – for customers, businesses, and the industry. We're developing new technologies to make it easier for our customers to stay connected to their world. Together, we’ve built a premier integrated communications and entertainment company and an amazing place to work and grow. Team up with industry innovators every time you walk into work, creating the world you always imagined. Ready to #transformdigital with us?

Apply now!

Weekly Hours:

40

Time Type:

Regular

Location:

USA:TX:Plano / W Plano Pkwy - Adm & Dat:2900 W Plano Pkwy

Salary Range:

$141,300.00 - $237,400.00

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.

Job ID R-77103-1 Date posted 08/26/2025